Colepaenr



R. H. COWDERY BOW FOR ARCHERY March 8, 1932.

Filed Aug. 8, 1927 2 Sheets-Sheet 1 gwucmtoz March 8, 1932. R, COWDERY1,848,768

BOW FOR ARCHERY Filed Aug. 8, 1927 2 Sheets-Sheet 2 Patnted Ma 8, 1.932

*My irnvnisin rel ats t b ow's 'fof archery, and methods ofmalkin'gthys'wme'.

The: "art (bf-archery is 1 doubtless QIi l 6f the.

although" 11 1 Oriental countries bows" have benandstil far-bofiimonlym'wd-e of bambc rbg Bows of meta-111d material havesometlms been proposed for use and hav'lben uls'd-g but; so far a-s Ian-aware, their use; has -fn'ot V been-attained with any "considerabledegree 1 5 ofsfldcesis, s'incwcfimmon-l-y, such bowrar of undue Weightandmsua-l ly the di lffl n-t Fort'ions of the bow arent relativjly'pmpefl'y pfopo'rfiioned as to fleimre and wei'gh fip obj eat ofiiivenfc-ibzf, therefore; is t0 rovidg a;b0W,ipOsSsSiI1gt9 a very'highclefgre the pmperty'fresilierrey sufficiently dis? 'tri butecl'throughout; its; length but WHichfw'il L 'notbeof lmd-ue weight; f if] 1Another object 04? my mven fii on i-sfid pi'of the weig-litfof the b'qwwill be di stributetbi n la mast eifi fifml-{llT-ii'll'fielf, beinggreater at the 'cexifier than toward the ends, Che bowbeing'ofmetalliefmgfierial and not as: r adily 'siilbj'e'cfi 1550' braikag; asm me- I complish the product idn 02E bbw's in q'uaiic'itijes, I

' c mpl-ish-th-pro'ducfiion of a bow of superior d mea; bowiwhich willnot; besubje' ct' t0 the j 0mmMW; OFwGLEVELANE OHIO,

" I 'ndwiwon' Ana -mm] f; g

use of the bow and arrowunti l my'invention'; frnre facile manner; Y

' bein gdra wn to: a: scvl Substantially 'al size-0fthesajidnibod'imht', and a-portiow 1927. ser 'iarno} 11,326.

dueeg bowhawi ngh paradox: of rl azive'ly r Anotherobectdhnw mvmion t th afrlis to say,- one which is} summmiagm I hke wood'embow's; whichareicom'i ndnl y sfi ldi c yipticm referem'e will} be had to 'the ccFig.1 3' isa fragmntary; "ni

ingembod iment lust'mti'ng the tip; the" View of the same being brokenaway and 1mm il l s'ectiony v Fig. 6 is a side ,elevatixaml' View o -fimam-" bodi'ment" 01% my invention i l lnsfir'aifiifig dig j bowlievlvesseparat'ed a, 'fmgmenfi o' 'fpm being showngqand 1 Fi gfiflisazdiag'namm thewarmus'steps oi draewmg'the imbflxr oug h 109" of the tube,the first, counting from theleft,

successively smaller and smaller dies to taper a tube in the formationof the foregoing embodiments.

' Referring now to the above figures of drawings, in all of which likeparts are designated by like reference characters, at 1 and 2, I show apair of stepped tapered tubular bow halves joined together at theirlarge ends, preferably by the telescoping of the end section 3 of thebow half 1 over the largest section 4 of the bow-half 2. Each bow-halfis substantially of the same length and are alike except in theirlargest sections, adapted for the joining of the bow-halves together tomake a complete bow as illustrated.

However, in order to make a strong reinforced joint between the halvesof the bow, I find it highly desirable to telescope a considerablelength4 of the half 2 in the end section 3 of the half 1, the section 4being of such a size that it may be so telescoped, and

be close fitting, and is brought into engage-V ment with the internalshoulder at the junction of the first two sections of the bowhalf v1.The section 3 of the bow half 1 is encompassed at its ends by a pair-ofrings 20- and 21 soldered or otherwise rigidly secured to itsexterior-surface, accomplishing partly an ornamental, and partly areenforcing efiect.

Each bow-half is preferably formed from a metallic tube of temperedsteel of substantially cylindrical form, prior to bending the same intothe desired shape and prior to tempering the same, which are eachoperated upon by-being forced successively through successively smallerdie-openings to successively less and less depths. This operation isbest illustrated in Fig. ,7, wherein there is illustrated a plurality ofsuccessive positions being taken to illustrate diagrammatically theprojecting of. the cylindrical tube to a distance indicated by thebottom 41 of the die 39, wherein only the relatively large section3-remains above the die opening 42 and alone -is-of the normal diameterof the non-compressed tube, the portion 44 0f the.

tube below the die opening 42 of the die 39 having been compressed to alightly reduced diameter; similarlyjto the right of the die 39, but eachprogressively nearer the line 60, are disposed a plurality of dies 45and 50, inclusive, each having die-openings 42 of progressively smallerand smaller diameters, the

lowermost diehaving the smallest die-open-- ing, the, tube beingsuccessively passed through the die openings 42, but after eachoperation only a smaller portion of the end of the shaft is projectedthrough the succeeding die opening of slightly less diameter. The resultof these successive compressive operations on the tube is to accomplishthe prod-uction of'a substantially straight tube hav- 5 "ing cylindricalsections near its largestend' of greater diameter than sectionsrelatively more remote therefrom.

The tube as formed by the successive compressive effects of thesuccessively smaller die-openings is then placed in a suitable bendingmachine and bent to have the proper form desired .for the bow in ironbending forms. This form may be varied, some bowyers preferring a formsuch as that illustrated in the drawings, which I personally the formofthe curve given to the bow, nor a in its broadest aspects is itlimited to any particular relation as to the varying diameters given thedifferent sections, a tubular bow, such as that herein described, beingsusceptible to varying degrees of taper in its various portions. A V

Subsequent to formation of the stepped sections of the bow-halves andsubsequent to bending them to the desired. form in a cast iron bendingdie, I heat treat the same, properly temper it to render each bow-halfflexible to increase their durability in use. whereby they will bereturned to normal unstressed position upon a full arrow pull after thearrow has been shot. After the bow-halves have been properly tempered, Imay then coat the exposed surfaces with a lacquer or the like whichforms a protective coating, which protects it against rusting.

Prior to stringing the bovv, the degree of curvature of the bow-halvesis less adj acent' the paradox, the degree ofcurvature towards the tipsto a point intermediate the ends of the bow-halves approximately at SO,at which point the curvature is reversed on a relatively small radius tothe tips. 7

Each bow-half so made, comprises a plurality of like substantiallyintegrally joined tubular sections having substantially parallel sidewalls which are of successively increased diameter from the end sections.22 and 22 of the bow-halves 1 and 2, respectively, which make atelescoped joint with each other, as

previously described. The construction is;

substantially the same for both halves of the bow.

In orderto compensate for the difference in diameters of the largestsections of the respective bow-halves 1 and 2, as illustrated at 3 and4, I make the second largest section 12 for the bow half 1, the secondlargest section 12, for the bow-half 2, each of like diameters, I therebeing, in the case of the-bow-half 1,-

twice as great an increase in diameter between the-section lQ-andt-lieend' section 3? therehfi as is thecasebetween;theisectionglQ,ofthe:bow-half 2 and the telescoped end sect on-4:

a hand, grip having: an outside diameter er} 'not'more-than 1% inches,which is easily pos- 1 sible and enables an archer to shootan arrowmoreqaccnrately than would he the case'were the'grip of larger diameter.The sleeve 14 is preferably secured to the section Shy ferrules seal thesleeve; 1 I: contemplate accomplishing, varying def grees of;responsiveness, in; diflerent portions posed sections relatively longer;or I shorter according to-theindividual preferenceof the userl @113'I'fin'd' that a boivhaving the following difor'bo w tor ordinary targetuses .to [which bows are pHt 'being. dimensions of abo-w which has beenmadeand whichembodies thev principles of my invention: 1 1 i-Iiithisjboav the telescoped portions are approximately 10 inches longwith an outside diameter of about inch, the wall thickness beingabout016 inch; The wall 40; thickness of the tip sections is about. .028

inch. The outside diameters of all succeeding sections are each aboutl/6 l'in'ch less than the diameter of the next largest precedf ingsection. The lengths, in inches, of the sections of one ofthe halves,inorder from the handle tothe'tipsections, exclusive (in this particularembodimenh'are about as follows 11/4 We a e, a /4 /4,- a, la, v 1&5? l 5s v 1c- -V Asha's been before explained the bow construction of myinvention is peculiarly adapt ed for the predetermination of any desired7 diameter inany portion of the bow, relative to anyoth'er portion'ofthe bow. This results in the ability ofthe manufacturer to deliver tousers a bow having'qualities of 'flexure and resiliency distributed tothe different portions of the bow according to his'particu- 7. 921211preference.- p

' Intermediate the diflere'nt sections of the:

bow, such as between the sections 7 and 8,

01 6 and 22, Fig; 5, andtheisections 3 andl,-

'Fig. 3; are disposed rounded. shoulders for i'fiilliit-l'lfi SQCtlOllSof relatively larger diameters li andlisoldered to it havinggflaringporf, tions 1 8 and l-Slfitting over the reduced ends ofthe bow-halvesby making difierently disa mensions: of, sectionszsproceeding from the,V paradox to thetlps g ves very. good results I rusting merge into the;wan the adjacent section of :sziiallen diameter. The formation.

being such that a-s'mooth 'rounded step is had at thesejo-ining"shoulders, .wherebyrflexing jstresses will. not be localized; adjacentthe, junctions between sections to cause breakage:

of-the bowat the j-unctions;a Thesejunctions: are madeso strong thatth'eyihave a .-reen+ r forcing effect. Alsog the presence of. so many oithese stifiie-ned; arched junctions. subdues the vibrationalyt'enclencyofthefbow whereby I otherwise; it might.-havef-a5more;pronounced; metallic ring wheirth'e arrow s loosediorflight. This metallic ringing sound is quite objectionable to theea'riof the experienced archer; asbeing; harshgand foreign. to the Itraditions:oftheartand is 'substantiallyelimzinated in theconstructionof bow herein do? scribed by ivirtue of fthef many Vljaunctions;vwhichdestroy the'tendency of the bow to of ficien-tly transmit"mechanical high pitched vibrations. v

' i To "each of, the ti pi se'ctions f22 and 22" thagbow-halvesisrigidly secured a tip- 7 0,;

as. best shown in Fig. 5 5 I which 1 preferably '1 make offaluminunialloy naterial, giving them generally, the form; illustrated inc-theirdrawings, havingthe-diagon s'rlly gm oved 'noc k 7-1 tohold the'string,"and theclassic overhanging helmetformed tip 72iwhich,I as illustrated,is boredfor the reception of-thezsec tions 22ia nd'22of the: bow-halves.'The tips 1 '1 r and end sections areeprovided with aligned aperturesintowhich placed a transverse rivet pin 75' being securedthere hyupsetting itsendsto hold'the tip in place..;

Preferably; the bow-halves are substantialr j ly symmetrical; it vbeingdesirable :th at the:

lower bowrhalf beequally as stifi astftlrehup I per-bow-halt, ith'eingfound that, in-'prac-.

tice, the two bow-halves: are'required towithwi stand-substantially thesame. stresses; 6

The tipsy'FO: are moreorigidly secured; to V I theaends ofthebowhalves.byisolderirrg the; 1 I 7 same thereon. Thewendsf 3'andi ft of.the. bow

,iK arms being closelyFEfitted,f onetf within" the other, theinteriorilof; the} bow is sealed,

"against the possibility ofnroisfiure entering f the samejand thus thepossibility 'ofathe Tsame eliminated. a

, Having; ibusfldes'cribd my aim ention :ini'

f om the interior wall o litwa 'rdlyis..

one: embodiment; I am! awarevthat. numerous and lextensive departuresmay be: made frornthe embodiment herein; illustrated ids-5..

scribed Without departing from the of my invention;

Iclaim: V V 1'. bow for archeryi'colrrprisingh a pair of; tempered.meta-lilictubular: tapered sec "125 i ti-onsjoimecl togethe ijattheifilargerends; V. i

2. A bow forjarchery,oomprisinga pair of: temperednaetallictubesyeach'formed er a plurality foi integrally joined: stepped Lsec"tiorrs ea i successively smaller; .diameterto? i H Abow for-archery,comprising a tennpered metallic tube, said tube being formed ofcylindrical-integrally joined portions, those disposed in the varyingportions of the bow-within which such sections are disposed, varying inlength inversely according to the rate of decrease of diameter of suchbowportions.

.5. A boffor archery formed of a pair of tempered metallic tubestelescoped together at one end to form'a paradoxfsaid tubes eachcomprising sections integrally joined together of successively smaller.diameter disposed in stepped. relation proceeding from the paradoxtowards the tips.

6. A bowfor. archery comprising a tempered metallictube 'havingintegrally joined sections of successively'smaller diameter pro-,ceeding from the handle portion of thebow towards'thetip, each of saidsections being of substantially the same cross-sectional area throughoutits length.

7. Themethod of producing a metallic bow for archery comprisingtheforcing of each of a pair of substantially cylindrical straight tubessuccessively through a plurality of successively smaller die openings,each successive die being telescoped over successively less lengths ofthe tubes, to form'a pair of tubes each comprising integrally joinedsections of progressively less and less diameter, and in-then bendingthe tubes to the desired bowshape and heat treating to temper the sameafter bendingand joining the tubes together at their larger ends.

' 8(A bow for archery comprising apair of tempered metallic tubular bowlimb sections, and hand grip-means joining the sections together at anend of each section, said sections beingofsuccessively smaller diam--eter towarditheir-otheiends. Inan archers bow, the combination'ofatubular bow member, a handle provided substantially medially thereon,and a string joining oppositeends of said bow member.

'10. In an archers bow, the combination of a metallic tubular bow membertapering from the center. toward the ends thereof, a

handle provided substantially medially thereon, and a string joiningopposite ends of said how member.

11. In, an 'archers bow, an intermediate handle portion and a tubular,metal limb extending from each of the opposite ends of saidhandleportion.

12. In an archers how, the combination of a tubular bow. membertaperingfrom the. center toward the ends thereof, ahandle provided substantiallymedially thereon; and a g string joining opposite'ends of said bowmember. U V

*18. In a bowfor archery, 'thecombination with a pair. of oppositelyextending'tubular tapered 'metallic limbs, the limbs provided with endsadapted to be relatively telescoped to secure the limbs together.

14. In a bow for archery, the combination with a pair of oppositelyextending tubular tapered metallic limbs, the limbs provided with endsadapted to be relatively telescoped to secure the limbs together, and ahand grip permanently secured on to the exterior surface of the exteriorone of the two telescoped limb ends.

15 In an archers how, the combination" of a tubular bow membertapering-from the center towards the ends thereof, and consistingmedially'of a plurality of relatively telescoped reinforcing tubularelements, a:

handle provided substantially medially over the sald telecoped elements,and a strlng for j'omin opposite reduced ends ofsaid bow member.

16. In an. archers how, the comblnatlon of a tubular bow membercomprising a pair of tubular elements each tapering from an end towardsits opposite end, the larger ends of the two elements being relativelytelescoped, .a handle provided substantially medially thereon, and astring for joining

